68897653 has 8 divisors (see below), whose sum is σ = 76909536. Its totient is φ = 61177200.

The previous prime is 68897639. The next prime is 68897669. The reversal of 68897653 is 35679886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68897653 - 2¹³ = 68889461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68897653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68897603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72358 + ... + 73303.

It is an arithmetic number, because the mean of its divisors is an integer number (9613692).

Almost surely, 2^68897653 is an apocalyptic number.

It is an amenable number.

68897653 is a deficient number, since it is larger than the sum of its proper divisors (8011883).

68897653 is a wasteful number, since it uses less digits than its factorization.

68897653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145715.

The product of its digits is 2177280, while the sum is 52.

The square root of 68897653 is about 8300.4610112933. The cubic root of 68897653 is about 409.9536989158.

The spelling of 68897653 in words is "sixty-eight million, eight hundred ninety-seven thousand, six hundred fifty-three".